Morristown, SD Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Morristown, a town in Corson County, South Dakota.
This Afternoon
68°F
Cloudy
Cloudy, with a high near 68. East wind around 8 mph.
7-day forecast for Morristown
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 68°F | Cloudy | 8 mph E | 1% |
| Tonight | 55°F | Cloudy then Patchy Fog | 2 to 6 mph E | 6% |
| Saturday | 64°F | Patchy Fog then Chance Light Rain | 3 to 13 mph ENE | 28% |
| Saturday Night | 53°F | Rain Showers Likely | 9 to 13 mph ENE | 57% |
| Sunday | 60°F | Rain Showers | 12 to 15 mph E | 75% |
| Sunday Night | 50°F | Rain Showers Likely | 5 to 10 mph E | 58% |
| Monday | 63°F | Mostly Cloudy then Slight Chance Rain Showers | 5 to 13 mph ESE | 15% |
| Monday Night | 49°F | Mostly Cloudy | 12 mph SE | 7% |
| Tuesday | 68°F | Partly Sunny | 13 to 23 mph SE | 6% |
| Tuesday Night | 53°F | Mostly Cloudy | 14 to 20 mph SE | 11% |
| Wednesday | 74°F | Partly Sunny | 14 to 18 mph SE | 13% |
| Wednesday Night | 54°F | Slight Chance Rain Showers then Partly Cloudy | 3 to 13 mph SE | 22% |
| Thursday | 75°F | Mostly Sunny | 3 to 9 mph ESE | 4% |
| Thursday Night | 54°F | Partly Cloudy | 8 mph ESE | 7% |
Forecast source: National Weather Service (api.weather.gov) for Morristown (45.939, -101.719). Updated through the day.
Growing snapshot for Morristown
Last spring frost
May 20
First fall frost
Sep 23
Growing season
124 days
Hardiness zone
4b
More local growing data for Morristown: nearby ZIP 57645 weather · frost dates · planting calendar · South Dakota frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Pretty Rock, Nd (19.7 mi from Morristown). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.